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List:       hpux-devtools
Subject:    RE: HPUX-DEVTOOLS: API's to get the number of CPU's on HP-UX
From:       "Wilbur, Stacey V" <stacey.wilbur () hp ! com>
Date:       2007-08-13 17:38:49
Message-ID: 7F3DB0C6541AB2409CDAF34F6FF7419B029CCB57 () G3W0066 ! americas ! hpqcorp ! net
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Senthil,

I recently opened a enhancement request because a couple of our ISV's
also has the same need (to get Socket information not just CORE
information) for licensing. JAGag45279
http://chart.hp.com/ddts/ddts_main?LastForm=DumpBug&bug_id=JAGag45279 

Currently there is not good solution for getting Socket information
unless you just want it on 11.31.  11.31 supports the use of
psp_sockets_id  (see the JAG).  Also 11.23 supports the programming of
it on 11.23 if you have the patches but 11.23 will not return any valid
data.  It is only intended so that you can execute the 11.23 developed
program on 11.31 and get the information.  I have asked if we can get
this fully supported for 11.23 PA and Integrity.  But not sure if that
will ever happen.

You can use mpctl(2) to get number of CORES both Hyperthreaded and not
using MPC_GETNUMSPUS_SYS and MPC_GETNUMCORES_SYS:
Here are some values returned from a 32 core Montecito with HT turned
ON:

mpctl(MPC_GETNUMSPUS_SYS,0,0)=64
mpctl(MPC_GETNUMCORES_SYS,0,0)=32
mpctl(MPC_GETNUMCORES,0,0)=32

This works on 11.23 and 11.31 and PA-RISC and Integrity as long as you
have the updated patch on 11.23 to support the new mpctl(2) options for
getting CORE information.  You need PHKL_31500 and PHKL_35767 for
mpctl(2) update.


If you need this to support your ISV please add them to the request. By
letting Harshadrai Parekh know about it.  Or add to the Jag if you can?
 
-Stacey Wilbur

-----Original Message-----
From: owner-hpux-devtools@cxx.cup.hp.com
[mailto:owner-hpux-devtools@cxx.cup.hp.com] On Behalf Of Prakash K,
Senthil (STSD)
Sent: Monday, August 13, 2007 12:09 AM
To: hpux-devtools@cxx.cup.hp.com
Subject: HPUX-DEVTOOLS: API's to get the number of CPU's on HP-UX

Hi folks,

One of our partner has a CPU based pricing Model and is asking whether
there is an solution to count the cores on PA and Itanium with HP-UX. Do
we have a solution? 

Basically they try to get information on kind of CPU (single core, dual
core, quad core. etc.) and the amount of CPUs (sockets) in the system.
While this info can be got through machinfo(IPF) command, the partner is
interested in some kind of API that will help him in getting these
details. They are looking to use this API in their application license
check routine.

Thanks in advance,
Senthil.

-----Original Message-----
From: owner-hpux-devtools@cxx.cup.hp.com
[mailto:owner-hpux-devtools@cxx.cup.hp.com] On Behalf Of ranganath
ramachandra
Sent: Monday, August 13, 2007 12:22 AM
To: Borcherdt, Dirk
Cc: hpux-devtools@cxx.cup.hp.com
Subject: Re: HPUX-DEVTOOLS: Loading dynamically bound binaries before
/usr is mounted

On Fri, Aug 10, 2007 at 09:53:04AM +0200, Borcherdt, Dirk wrote:
> 
> I'm currently dealing with an ISV who wants/needs to load a binary on 
> HP-UX 11i v2 IA-64 before /usr is mounted (when dld.so is not yet 
> accessible). Firstly I thought, I let them build a statically bound 
> binary based on libcres.a, but unfortunately they need to link with 
> libpthread (no static version distributed with modern versions of 
> HP-UX 11i), so that a dynamically bound binary seems to be the only 
> valid option, but how (if at all) can such a binary be loaded before 
> /usr is mounted?
> 

while this is theoretically possible, it would need all the required
libraries (including uld.so and dld.so) to be shipped into some place
under the root filesystem and that seems very unlikely.

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